cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A199246 T(n,k)=Number of nXk 0..2 arrays with values 0..2 introduced in row major order, the number of instances of each value within one of each other, and every element equal to zero or two horizontal or vertical neighbors.

Original entry on oeis.org

1, 1, 1, 1, 2, 1, 3, 2, 2, 3, 6, 12, 6, 12, 6, 5, 36, 25, 25, 36, 5, 19, 39, 110, 440, 110, 39, 19, 37, 288, 472, 2907, 2907, 472, 288, 37, 29, 836, 2080, 7100, 29227, 7100, 2080, 836, 29, 124, 888, 9279, 134821, 106134, 106134, 134821, 9279, 888, 124, 240, 7380, 41704
Offset: 1

Views

Author

R. H. Hardin Nov 04 2011

Keywords

Comments

Table starts
...1....1......1........3..........6..........5..........19..........37
...1....2......2.......12.........36.........39.........288.........836
...1....2......6.......25........110........472........2080........9279
...3...12.....25......440.......2907.......7100......134821......934004
...6...36....110.....2907......29227.....106134.....3190670....34188947
...5...39....472.....7100.....106134....1682457....27337776...454364514
..19..288...2080...134821....3190670...27337776..2013526831.52332203186
..37..836...9279...934004...34188947..454364514.52332203186
..29..888..41704..2277108..128653588.7678775057
.124.7380.187500.46296108.4104988637

Examples

			Some solutions for n=6 k=4
..0..1..2..1....0..1..0..1....0..1..2..0....0..1..0..2....0..1..2..0
..1..0..1..0....2..0..1..2....1..2..0..2....1..0..2..1....1..0..0..1
..0..1..0..2....0..1..2..1....0..1..2..1....0..2..1..2....2..0..0..2
..2..0..2..0....2..2..1..0....1..0..1..2....1..0..2..1....0..2..1..0
..1..2..1..2....2..2..0..1....0..2..0..1....0..2..0..2....1..1..2..2
..2..0..2..1....0..1..2..0....2..1..2..0....1..0..2..1....1..1..2..2

Links

Crossrefs

Column 1 is A199126
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